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Exam (elaborations)

IICRC WRT Certification Exam – 100+ Q&A | Classes of Water Damage, Psychrometry, Drying Systems, Dehumidification

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This comprehensive Q&A exam prep guide contains over 100 fully solved, expert-verified questions and answers covering the 2025/2026 IICRC Water Restoration Technician (WRT) certification exam. It is tailored for professionals and students preparing for roles in water damage restoration, disaster response, mold remediation, indoor environmental control, and property insurance compliance. Organized in exam format, this document provides accurate answers and key explanations for topics required by the ANSI/IICRC S500 Standard for Professional Water Damage Restoration, including: Water loss categories and classes (Category 1, 2, 3; Classes 1–4) Psychrometry: vapor pressure, relative humidity, dew point, humidity ratio, and temperature relationships Drying techniques: open vs. closed drying systems, use of air movers, desiccant vs. refrigerant dehumidifiers (LGRs), and evaporation enhancement Moisture measurement: equilibrium moisture content, thermo-hygrometers, moisture meters, and drying logs Material behavior: responses of concrete, wood, drywall, insulation, carpet padding, and vinyl coverings to water exposure Contamination & safety: PPE use, mold response, sewage protocols, and chemical application (biocides, sterilizers) Regulatory standards: EPA guidelines, ANSI/IICRC S500 compliance, documentation practices, and legally required disposal Calculations: air mover placement, dehumidification capacity (pints/day), volume estimations, and psychrometric analysis Suitable for restoration technicians, construction professionals, environmental health students, insurance adjusters, and anyone seeking to pass the IICRC WRT certification. Keywords: IICRC WRT exam, water restoration technician, ANSI S500, psychrometry, vapor pressure, drying systems, dehumidifiers, desiccant drying, water loss class, moisture meter, air mover placement, LGR dehumidifier, carpet delamination, mold remediation, PPE, biocide, drying logs, flood restoration, moisture equilibrium, humidity ratio, drying standards

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Iicrc Wrt
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Uploaded on
November 29, 2025
Number of pages
19
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers

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IICRC WRT Test 2025/2026 Exam
Questions and Correct Answers | New
Update



#1. During the inspection process, restorers shall make a reasonable effort

to - 🧠 ANSWER ✔✔C. identify and address potential safety hazards


#2. A significant amount of water absorption and evaporation load where

wet porous materials represent ~5% to ~40% of combined ceiling, walls,

and flooring surface areas and where low evaporation materials and

assemblies are minimally wet is - 🧠 ANSWER ✔✔B. class 2


#3. Multiple extraction of salvageable materials, especially porous material

(e.g. Carpet , cushion) often are required to: - 🧠 ANSWER ✔✔decrease

drying time

,#4. To enhance drying, restorers should manage both ambient temperature

and - 🧠 ANSWER ✔✔surface temperatures of affected materials


#5. Water damage restoration services should not begin until after the: - 🧠

ANSWER ✔✔restorer has entered into an adequately written contract.


#6. Two tools that should be used to properly disengage most stretched-in

carpet - 🧠 ANSWER ✔✔Knee kicker and carpet awl


#7. When inspecting a water damage structure, restorers should inspect: -

🧠 ANSWER ✔✔all potentially affected areas.


#8. Buckled or damaged particle board should - 🧠 ANSWER ✔✔removed

and replaced with new material.

#9. upon entering a building, professional moisture detection equipment

should be used to evaluate and document: - 🧠 ANSWER ✔✔applicable

psychrometric conditions and moisture content or level readings .

#10. When wet, a structural material that loses most of its structural

integrity, but regains its strength when dry, is: - 🧠 ANSWER ✔✔Concrete

, #11 Initially, a method of search for abnormal moisture behind ceramic tile

or resilient flooring can be accomplished by - 🧠 ANSWER ✔✔using a non-

penetrating (non-invasive) moisture meter

#12. To minimize damage and reduce drying time, reduce drying time,

restorers should: - 🧠 ANSWER ✔✔begin mitigation as soon as safely

possible

#13. The moisture content of structural materials should be measured with

a - 🧠 ANSWER ✔✔A. moisture meter


#14. When accessible from below, to dry wet wood subflooring under stone

or tile flooring, restorers can use low-humidity air and - 🧠 ANSWER ✔✔D.

vapor barrier

#15. Biocides designed to destroy or eliminate all forms of microbial life and

their spores are - 🧠 ANSWER ✔✔D. sterilizers


#16. When carpet is wet it can be delaminated by - 🧠 ANSWER ✔✔D.

improper handling and disengaging




COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
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